Railway-car truck.



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APPLIUATION PILED,0GT.31, 1903. r RENEWEDDEO. 27.1905. ,l

' 4 SHEETS-SHEET 1 resident of Springield, in the county ofvUN ITFD STATES vlFAiFinir oFFroF.

SUMNER' A.l BEMIS, oF SPRINGFIELD, MASSACHUSETTS.

RAlLwAY-CAR TRUCK.

. Patented March 2o, 190e.

Application filed October 31,1903. Renewed December 27, 1905. Serial No. 293,499.

To all whom t may con/cern:

Be it known that I, SUMNERA. BEMIs, a cit'- zen of the United States of America, and a Hampden and State of Massachusetts, have invented certain new and useful' Improvements in Railway-Car Trucks, of which the following is a full, clear, and exact description.

Thisinventionrelates to improvements in railway-car trucks, more particularly those for electric street-railway cars; and the invention pertains toy the general organlzation of the truck as a whole wherein 1s included a` truck frame, sustained, preferably springsupported, on the journal-boxes, and which is available for carrying equipments and fixtures in no waypertaining tothe car or load'- such, for instance, as .an electric motor, and the brake-shoes and brake-operating mechanism, an additional 4and independent journal-box support, longitudinal bars, herein termed equalizing-bars, spring-supporting a bolster or, as herein particularly shown, a compound bolster, which sustains the car and its load; and the invention embodies in a truck thel combination, with the'car-wheel axles and journal-boxes and a truck-frame supported by said journal-boxes, `of car-su porting appllances independent of said .truc ame comprising longitudinally ranging bars having, preferably, lowered intermediate portions, the extremlties of said bars be-l ing ,supported by the journal-boxes, a carsupportlng bolster and springs having supports upon said bars, and yieldlngly sustaining the bolster thereabove.

The inventionfurthermore consists in subordinate combinations or arrangements of parts and in the constructions of the various parts for particularmanners of coperation, one with another,` all substantially as hereinafter fully described, and set forth -in the claims. .y

The accompanying drawings represent the present improvements in railway-car trucks, wherein- Figure 1 is a lan view of the truck, showing a portion o the transom-bolster and the swing-bolster broken away, disclosing the up-` per and lower truck-frame uniting and bracing transoms, which are understood as below the vbroken away portions of the bolsters mentioned. Fig. 21s a sidev elevation ofthe truck with one end portion of the truck side .frame and the adjacent journal-box broken out and .represented in central vertical longitudinal section. Fig. 3 is a vertical crosssection of the truck, as taken on the plane represented by theline 3-3, Fig. 2. Fi 4 is a partial vertical sectional view on theine 4 4, Fig. 3. Fig. 5 is a perspective view'of the transom-bolster. Figs. 6 and 7 are perspective views of the upper and lower carryingblocks, which sustain the swing-bolster ina secondary manner from the transom-bolster.

Fig. 8 is a perspective-view of the transombolster. Fig. 9 is a perspective viewl of one of the equalizing-bars, of which in the truck there are two, ranging at the opposite sides thereof, and which equaliZing-bars pertain to the car-supporting arrangements independent of the truck-frame.

The scales of the various views in Figs. 5 to 9 are variable,

the proper proportionate representation of these parts being apparent in the other figures. Fig. 10 is a plan view of. intermediate portions of the oppositely-arranged truckframe side members and the upper and lower transversely-uniting rigidly-connected transoms; Fig. 11 is a ycross-sectional view with some parts in elevation, as seen on the line 1 1 11, Fig. 10. Fig. 12 is a vertical section across the upper and lower transoms, as taken on the line 12 12, Fig..11, and showing the intermediate portion of one of the truckframe side members in elevation beyond the plane of section. Fig. 13 is a pers ective view of a casting utilized in uniting tli of the upper transom with the intermediate portion of the .oppositely located truckframe side members.

v Similar characters of reference indicatecorresponding parts in all of the views.

In the drawings, A A represent the jour-` nal-boxes, supported in the usual manner on the ends of the car-wheel axles B, the forward and rear boxes at each side of the truck.l

supporting the equaliZing-bars C and the side `frames D, which are of hollow construction and accommodate therewithin such equal.- izing-bars, the side frames being, by the springs a, supported above the tops of the journal-boxes, such side frames D D sustaining all of the parts pertaining t'o the truckframe, while the equalizing-barssustain,

throu h the medium of the elliptic springs e bars IOO b b2, t e transom-bolster E, the 'same having only an upvanddown movement on its springs and in turn sustaining the swing-bolster G, which is peculiarly supported on spiral springs suspended from the transom-'- IIO.

bolster, and has in addition to its cushioned up-and-down .movement a proper degree of endwise springresisted movement crosswise of the truck.

Each of the oppositelydisposed longitudinally-ranging truck-frame side members D is constructed at the end portions thereof of yoke f orm, constituting pedestals 50 to embrace the journal-boxes A, -andthe intermediate portion of such side member has the upwardly opening jaw 52, constituted by the separated upstanding projections 53 53, and each truck-frame side member comprises inwardly and outwardly disposed longitudinally-rangin sides or bars 54 and 55, se arated especially at the portions between t e journal-boxes to give space for occupancy therewithin of the equalizin -bars C, the end portions of which rest direct y on the tops of thejournal-boxes, while the middle portions thereof are lowered, as shown,

The spacing-blocks 56'are fitted and bolted within the upstanding portions 53 of the transversely 'opposite bars of each truckversely of the truck frame side member, the faces of these blocks 56 toward the jaw-opening 52 being located longitudinally slightly toward the ends of the truck from the vertical edges at-the front and rear boundaries of such jaw-opening, the

inner faces of said blocks 56 receiving and re` sisting any thrust or shifting of the transom bolster transversely of its own length and longitudinally of the truck, the transom-bolster having the vertical lugs or Vprojections 58, which enter between the inner and outer bars of the truck-frame side member and have their vertical faces in planes transractically in contact with said transom-bolrster thrust-blocks 56,

ing 52.

and the end portions 59 outside and also next inside of the lugs or projections 58 play freely vertically relatively to the vertical margins of the jaw-opening 52 in each of the side members D.

The truck-frame, which as a whole is ,of a rectangular form, has the end extensions of the side members D thereof transversely united by the tiebars 60 and also transversely united and braced by the upper and lower transoms M and N, both of which have -their locations between the jaw-provided truck-frame side members D and their connections with the latter below lThe transom-bolster may advantageously be in the form ofA a substantially constructed 'cross-beam composed of separated parallel the jaw-open- I the truck through the medium of the half- -elliptic springs b and the supplemental halfelliptic s rings b2.

The e lipticL springs b are shackled or engaged at the under portions of the extremities of the transom-bolster and have their locations within the space inthe hollow truck-l frame side members. The extremities of each principal half-elliptic spring b are supported on the rests 66, provided therefor upon the equalizing-bars, and the supplemental half-elliptic sprin s b2 provided next under the principal half-e liptic springs b are normally arranged with their extremities free and clear sli htly above the rests 67 therefor, rovide on the equalizing-bars, such supp emental sprin s coming to bearing and assisting lto sustain t e weight of the car and its load when the latter becomes excessive.

The -extremities of the equalizing-bars, as represented in Fig. 9 and by dotted lines in Fig. 1, are narrowed so as to be accommodated between the pairs of inner and outer springs c L at the tops of the journal-boxes and which support the truck-frame.

The swing-bolster has end walls f and is provided in both of its ends with perforations g g through its top wall, the portions of the bolster at which these perforations are provided bein overlaid by the carrierblock H, the dimension of which fore and aft of the truck being greater than the width of the swing-bolster, so as to receive support at the notched portions h 7L thereof on the opposite parallel and separated members 10 10 of the transom-bolster E, the said members 10 10 having the upstanding edge lugs 12 12, as seen in Fig. 9, which serve as abutments for shiftin or displacement of the upper carrierblock relatively to the length of the transom-bolster, andof course it will be plain that the carrier-block ma have no shifting movement transversely o the length of the transom-bolster by reason .of the margins of the under notches h h engaging the upper edges of the transom-bolster members 10.

The upper carrier-block has .perforations 15 in arrangement matching with those g g of the swing-bolster, and it has horizontal channels 16 16 from side to side thereof in lines intersecting the perforations 15, in which channels round horizontal bars 'L rest, the intermediate ortions of which penetrate and are encircled by-the ring-formed upper ends of vertical bars j, 4which depend down throu h the erforations in the upper carrier-b ook an in the swing-bolster, and have at their ring-formed lower ends horizontal bars 2, similar to the upper ones i, and which sustain the lower carrier-block I, the same having underneath grooves 17 17 for engagement over the` horizontal bars fi?, having-the perforations 1818 for, the accommodation of the vertical bars j, and are rovided with upstanding cheeks 20 20,whic constitute guide members by their sidewise engagements with the depending websff2 of the swing-bolster. The comparatively massive spiral springs 1o. the swing-bolster for a vertical cushioned movement relatively to the transom-bolster E, by which the carrier-blocks and supporting-springs are primarily sustained.

Springs J are interposed between the ends ofthe swing-bolster and the hollow block members at the ends of the transom-bolster, these springs, as shown in Fig. 3, 'being spiral springs encircling tubular hub-like fittin s 32, projecting longitudinally from the en s of the swingbolsterand settin into deression seats 3.3 in the'inner en s of .the locks 30and bolts 34 are extended horizontally ythrough the transom-bolster part v30, centrally within the springs and into the 2s l outer ends screwed up against the ends of the -part 30.

The aforementioned' truck frame side members may, .according to the size of the 3o truck and the preference of the constructor,

' be made in inte al casting or forging or they may be sectiona ly made and-built up, braced and 4trussed.l

The connection of the upper transom 4M with the intermediate portion of the oppo- `site truck-frame side member D D is as show-n in Fi s. 10 to 13, such upper transom Kconsistn o paired and somewhat widelyseparate `-bars 72, the ends of 'which are bolted to the channeled lug members 73, the vertical supporting-back 74 therefor being bolted to the inner bar ofthe side member D, and the said casting or forging is constructed.

with a strengthening and uniting web ,'75, formed integral with and extending-between the channeled lugor bracket member 73.

The lower transom consists of. paired bars 76 76 of structural steel or other suitable metal, the intermediate pprtions of which are in facewise conta'ct and eld together by the 59 clips' 77, bolted thereto, andthe extremities of the said 4bars 7 6 toward the inner sides of. the truck-frame members D are outwardly/f divergent, as'indicatedat, 78', and--providedl with terminal lugs 79', 'which are confined by l bolts and contact against the inner faces of the truck-'frame s ideniembersj- A The supplemental lellipticsprings b2 Will; in the construction ot manytruc s be dispensed with;- f Q i In the *railwaycar truck'or aniz'ed Ias shown. and hereinabovel describe ,while -ofA course all departments of the truck, the car,

and its load are primarilyl supported by thez 6-5 journal-boxes, provided, as usual, at the'out- K rest on the lower carrier-block and sustain vand N, or be a ected by the results of any part 3 2, said'bolts receiving nuts'35 at theirv Vcar sup orting appliancesA independent of ward journal extremities ofthe axles for the car-wheels, it will be appreciated that the car-body and the passengers will ride on etlicient and highly satisfactory s ring supported bolsters therefor, and wil not affect or be in any unfavorable manner affected by the independent truck-frame, which comprises the side members D the end crossl ties, and the u per and lower transoms M actions., shaking, shifting, or vibration ofthe brake-mechanism and the motorwhich .are supported by the said independent truckrame, which frame has, however, as a parent, in addition toi-the functions of rake mechanism and motor-supports also that of constraining and guiding in its vertical movements only, the transom-bolster. Having thus described my invention, what I claim, and desire to lsecure by Letters Patent, isj 1. In a' truck, in combination with the cal'.- Wheel axles l.and j ournal-boxes, and a truckframe supported. on said journal-boxes, and

said truc -rame, comprising longitudinallyranging bars, the extremities of which are supported by the journal-boxes, a cari-supporting bolster, and sprmgs yieldingly sustaining said bolster, above said bars, said bolster-sustaining springs being primarily supported by said bars. 2. In a truck, in combination, the carwheel axles and j ournal-boxes, 'and a truckrame supportedon said journal-boxes, and car -sup orting appliances independent of said truc -rame, vcomprising longitudinallyranging bars, the extremities of which are supported bythe journal-boxes, a car-sup'- porting bolster, and springs yieldingly sustaining' said bolster, above said bars', said bols'ter-sustainilg springs being) primarily supported by sai bars, and said o kster having a vertically-guided engagement with the truck-frame. v

3.. In a truck,l the combinationwith the car-wheel axles, .and their ournal-boxes, and a truck-frame supported on saidjournalboxes, o'I' car-supporting appliances independent of said truc frame, comprising'longitu- ,115 dinallyranging bars the extremities of which are supported by the j ournal-bxes, a transveresly. arranged transom bol'ster, and springs sustained lby said bars and yieldingly l su porting the transom-bolster, and aiswing- '12o bolster,y sustained by the transom-bolster, i and arranged for a movement endwise `or itself, relatlvely to the transom-bolster.

,and opposite inwardly' and outwardly d is- V13o posed pairs of spiral springs, resting on the tops of the -j ournal-boxes and supporting said yo e-formed side frames; and car-su porting appliances, independent `ol the truc -frame, comprising longitudinally-ranging bars, having lowered intermediate portions, the extremities of which are supported on the journal-boxes between the palrs of truck-framesupporting springs, a ear-supporting bolster and springs yieldmgly sustaimng said bolster above sald bars, said bolster sustaining springs being supported by said intermediate lowered portionsof the bars.

5. In. a railway-car truck, in combination, the car-wheel axlesv and their journal-boxes, and a track-frame, comprising opposite hollow longitudinally-ranging side members,

' and transverse uniting means, end porti ns of' said side members being, of yoke form e bracingV the j ournal-boxes, and opposite inwardly and outwardly disposed pairs 'of spiral springs resting on the tops of the journalboxes and supporting said yoke-formed side yieldingly and a truck-frame,

' tions,

frames; and car-sup orting appliances, independent of the true -frame, com rising longitudinally-ranging bars, having owered intermediate portions and the extremities thereof being located within said hollow side,

members, supported on the j ournal-bo'xes bei tween the pairs -of truck-frame-su porting springs, a car-supporting bolster, an springs sustaimng said bolster, abovesald bars, said bolster sustaining springs being supported by said intermediate lowered portions of they bars.

6. In a railway-car truck, in combination, the car-wheel axles and their journal-boxes, comprising opposite side members, and transverse'unitmg means, end portions of said side members being of yoke form embracing and reeeivin support from the journal-boxes and the mi dle portions of each truck-frame side memberbeing con. structed with a vertical bolster-guide; and car-supporting appliances, independent of the truckame, comprising longitudinally-ranging bars, having lowered intermediate porthe extremities of which are supported on the journal-boxes between the pairs of truck-frame-supporting springs, a centrally and transversely arranged car-supporting.

uniting means, end

upwardlyopening jaws, and o osite wardly and outwardly disposed pllgrs of spiral springs, resting on the tops of the journalboxes and supporting said yoke-formed side frames; and car-sup orting appliances, independent of the truc -frame, com rising longitudinally-ranging bars, having owered intermediate portions, the extremities of which are supported on the journal-boxes between the pairs of truck-rame-supporting springs, a centrally and transversely arranged jbolster, the extremities of which en agein said jaws, and springs on said interme iate lowered portions of said bars, and yieldingly supporting the jaw-engaged bolster. .l

8. In a truck, the combination with the car-wheel axles, and their journal -boxes, and a truck-frame supported on said journalboxes, of ear-supportmg appliances independent of said truck-frame, comprising lon litudinally-rangin bars, the extremities of w ich are supported 2(by the j ournalboxes, a transversely-arranged transom-bolster, and springs sustained by said bars and yieldingly supporting the transom.- bolster, and a swingolster spring sustained by and capable of a vertically-yielding movement relatively to the transom-bolster.

9. In a truck, the combination with the car-wheel axles, and their ournal-boxes, and a truck-frame supporte on said journalboxes, o-car-supporting appliances independent of said truck-frame, comprising lon itudinally-ranging bars, the extremities of w ich are supported b the journal-boxes, a transversely-arrange transom-bolster, and springs sustainedbysaid bars and yielding'ly supportthe transom-bolster, and a swing-bolster spring sustainedby, and capable of a vertieally-yieldin movement relatively to, the transom-bo ster, and also arranged for a movement endwise of itself relatively to the transom-bolster.

10. lArailway-car truck having a transombolsteracross its middle portion,` omprisin parallel separated side members, A.and en pieces between and unitingfthe extremities of said side members, and a swing-bolster located inthe space between sai bers and havin .its ends ad'acent but separated from -sai uniting en ieees, sustained .by the transombo ster .an supporting the sWing-bolsterforvertically-yieldmg movements, and springs betweenA lthe ends of the swing-bolster and said transombolster vend pieces.` t I Y 11. A railway-car .truck havingI the 'transom bolster com rising parallel separated side members, an end piecesbetween and uniting the extremities thereof, saddle-blocks su` ported upon end portions of the transomboster, and depending bars havin su porting engagements with said carrierloc depending therebelow within thes ace between the transom-bolster side members and ar- IIO side memranged for swin ing movements relativel to the carrier-bloei, and `sustaining from t .eir lower portions swingbolster sup ortmg springs, and a swing-bolster dispose 1n the 'space between the transom-bolster side members and resting on said springs. v v, 12. In a railway-car truck, the combination with the journal-box-supported equaliz- I equalizing-b ars, an

ing-bars, and a ournal-box-supfported truckframe indepen ent thereof, -o` a transombolster comprising parallel separated side members spring-supported by and above said guided for vertical movementby -and relatively to said independent truck frame, and a car supporting swin bolster locatedv inthe space `between said si e members and spring-supported by the tran- I 1 som-bolster.

13. In va railway-car truck, thecombinaltion with the journal-box-supported equalizing-bars, and aj ournal-box-sup orted truck-l A.if-rame independent thereof, 0 a transom-j` bolster comprising .parallel separated sidel members, and end pleces between and unitp ing the extremities of 'said side members, spring-supportedr by and above said equalizlng-bars, and guided for verticalJ movement by and relatively to said inde endent truckframe, and a swing-bolster ocated in the space between said side members and having its ends adjacent but separated from sai uniting end pieces, spring-sustained by the vtransom-bolster and supporting the swingbolster. for vertically yielding movements,

and springs between the ends o' the swingbolster and said transom-bolster end pieces.

14. -In a railway-car truck having the transom-bolster com rising parallel separated side members, an end pleces between and unitingthe extremities thereof, saddle-blocks su ported upon end portions of thetransomj/bo ster, and depending bars havin supporting engagements with said carrierlocks depending therebelow within the s ace between the transom-bolster side mem ers and arranged for swingingv movements relatively to at their lower portions with spiral vertlcallymounted on said carrierand a swing-bolster, disposed in the s ace be- -the saddle-blocks, and having'carrier-blocks s rings blocks,

4 tween the transom-bolster side'mem ers and resting on said l' carrier-block-supported 15. In a railway-'cartruc/k, a journal-boxsupported truck-frame, having at the middle portions of lits side members upwardly-o enmg jaws, combined with a transom-bo ster having the Yend portions thereof engaged within said jaws and guided thereat for vel.- ticalmovements, and sup orting-means for said transom-bolster, in ependent of said-y 16. In a railway-car truck, a journal-boxsupported truck-frame, having 'at the middle portions of its side members upwardly-o ening jaws, combined with a transom-bo ster having the end portions thereof engaged within said jaws-and guided thereat for vertical movements, and restrained by such engagements a ainst movements in the line of its own lengt relatively 'to said truck-frame, and sup orting means for said transombolster, independent of said truck-frame comprising springs on which the -end por-iy tions ofthe bolster rest. v

17. In a railway-car truck, the combination ith the tilllck-frame sidel members havin t e -upwar -o eninl 'aw ,the o osite veiiitical edges ofywhlich btie iriwardljIg-Id en' ing vertical ways, ofthe transom-bolster aving its extremities located within'said jawopening, and having the oppositely-arranged projections 58 58 engaging in said ways, and spring-supp orting means for the transom-bolster. l

constructed with op ositely ranging s ide bars having a space therebetween combined with the equalizing-bars C independent of the truck-frame, springs above and sustained by 18. Inga railway car truck, the truckframe, sustained by the journal-boxes and the e ualizing-bars, the transom-bolster susependently supported byl their middle portions, bolster-supporting l s rin s, which s rings and said e ualizin blars :Ire arranged3wtl1in the truck-iiame side members, the transom-bolster resting on said springs and constructed with an aperture opening vertically therethrough, the swing- 'bolster located in said aperture, and in suspension for endwise swinging movement relatively to and spring-sustained by-the transom-bolster. l

' 20. In a railway-car truck, in combination,

the journal-boxes, the longitudinally-ranging Y equalizin -bars sup orted thereby, the truckrame in ependentiy supportedby the journal-boxes, the transom-bolster, s ring-supported by the equalizing-bars, gui ed at their vend portions vertically by and relatively to the independent truck frame, and said bolster comprising opposite side members having sadl dle-blocks supported thereon inside of the truck-frame side members, depending bars sup orted forswingin movements relatively to the saddle-block, a ower carrier-block sustained by said bars and su porting one or more springs, and a swingolster disposed within the separated members of said transverse support and having the end portion thereofsupported by saidsprings.

21. In a railway-car truck, in combination, the journal-boxes, the longitudinally-ranging equalizin -bars sup orted thereby,the truckframe inrIependent y supported bythe journal-boxes, the transom -bolster, spring-supported by the equalizing-bars, uided at their end portions vertically by an relativel to the independent truck-frame, and said bo ster com rising opposite side members having sad e-blocks supported thereon inside of the truckframe side members depending bars sup orted for swinging movements relatively to t e saddle-blocks and sustaining lower carrier-blocks having bolster-springs, a swingbolster located between the separated vmembers of said transverse support resting on the bolster-springs, and springs between the end.

walls of the transverse support and the ends of the swing-bolster. Y

i 22. In a railway-car truck, incbmbination,

and a horizontal channel intersecting t e lupon and extending above t ',nesses.

hole, a vertical bar dependin hole in each saddle-block and zontal cross-bar at its u per end 1 ing in said channel and having a orizontaIl bar at its lower end, of lower carrier-blocks having vertical holes therethrough and supported on the lower horizontal members of said depending bar, bolster-s rings mounted on said lower carryin -bloc s and the swing-bolster.

resting on sai springs.

23. In a railway-ear truck, in combination', the journalbox supported equalizing-bars, the vindependent journalbox supported truck-frame, the transom-bolster, sprlng-suported by and above the equalizing-bars and aving uiding engagements with said truckframe', t e saddle-blocks mounted on the transom-bolster having the depending bars having swing-supported engagements with the' saddle-blocks, and depending therebelow, the

standing members 20 20, springs supported ocks, and the swing-bolster supported on said springs and havin depending separated walls f f 2 with which t e carrying-block upstanding members 20 2O have guiding engagements.

Signed by me, at Springfield, Massachusetts, in presence of tWo subscribing witsUMNER A.` BEMIS.

`Witnessesz A. V. LEAHY, WM. S. BELLows.

through the avng a horicarrying-blocks supported by and atlower A portions of, said depending bars having up- 

